LM2903WH Low-power, dual-voltage comparator Datasheet - production data Features Wide, single supply voltage range or dual supplies, 2 V to 36 V or ±1 V to ±18 V Very low supply current (0.4 mA) independent of supply voltage (1 mW/comparator at 5 V) Low input bias current: 25 nA typ. Low input offset current: ±5 nA typ. Input common-mode voltage range includes negative rail Low output saturation voltage: 250 mV typ. (IO = 4 mA) Differential input voltage range equal to the supply voltage TTL, DTL, ECL, MOS, CMOS compatible outputs ESD internal protection: 2 kV Wide operating temperature range: -40 to 150 °C S MiniSO8 (plastic micropackage) Pin connections (top view) Description This device consists of two independent low-power voltage comparators designed specifically to operate from a single supply over a wide range of voltages. Operation from split power supplies is also possible. 1 - Output 1 2 - Inverting input 1 3 - Non-inverting input 1 4 - VCC 5 - Non-inverting input 2 6 - Inverting input 2 7 - Output 2 8 - VCC+ October 2015 The input common-mode voltage range includes negative rail even though operated from a single power supply voltage. All pins are protected against electrostatic discharge up to 2 kV. Consequently, the input + voltages must not exceed the VCC or VCC magnitudes. DocID028311 Rev 1 This is information on a product in full production. 1/14 www.st.com Contents LM2903WH Contents 1 Schematic diagram.......................................................................... 3 2 Absolute maximum ratings and operating conditions ................. 4 3 4 Electrical characteristics ................................................................ 5 Typical application schematics ...................................................... 7 5 Package information ..................................................................... 10 5.1 MiniSO8 package information ......................................................... 11 6 Ordering information..................................................................... 12 7 Revision history ............................................................................ 13 2/14 DocID028311 Rev 1 LM2903WH 1 Schematic diagram Schematic diagram Figure 1: Schematic diagram (1/2 LM2903WH) VCC+ 3.5 µA 100 µA 3.5 µA VCC+ 100 µA VCC+ Non-inverting input VCC- Vo VCC- VCC- VCC- Inverting input VCC- DocID028311 Rev 1 3/14 Absolute maximum ratings and operating conditions 2 LM2903WH Absolute maximum ratings and operating conditions Table 1: Absolute maximum ratings Symbol Parameter VCC Supply voltage Vid Differential input voltage Vin Input voltage Vout Output voltage Rthjc Tj Tstg - + (VCC ) - 0.3 to (VCC ) + 0.3 V 36 (1) Infinite Thermal resistance junction to ambient Thermal resistance junction to case (2) (2) Maximum junction temperature Storage temperature range Human body model (HBM) ESD Unit ±18 or 36 Output short-circuit to ground Rthja Value Machine model (MM) 190 °C/W 39 160 °C -65 to 160 (3) (4) CDM: charged device model 2000 200 (5) V 1500 Notes: (1) + Short-circuits from the output to VCC can cause excessive heating and possible destruction. The maximum + output current is approximately 20 mA and is independent of the V CC magnitude. (2) Short-circuits can cause excessive heating and destructive dissipation. Values are typical and for a four-layer PCB. (3) Human body model: a 100 pF capacitor is charged to the specified voltage, then discharged through a 1.5 kΩ resistor between two pins of the device. This is done for all couples of connected pin combinations while the other pins are floating. (4) Machine model: a 200 pF capacitor is charged to the specified voltage, then discharged directly between two pins of the device with no external series resistor (internal resistor < 5 Ω). This is done for all couples of connected pin combinations while the other pins are floating. (5) Charged device model: all pins and the package are charged together to the specified voltage and then discharged directly to the ground through only one pin. This is done for all pins. Table 2: Operating conditions Symbol Vicm Toper 4/14 Parameter Common mode input voltage range -40 °C ≤ Tamb ≤ 150 °C Operating free-air temperature range DocID028311 Rev 1 Value 0 to + (VCC ) 0 to Unit - 1.5 + (VCC ) -2 -40 to 150 V °C LM2903WH 3 Electrical characteristics Electrical characteristics Table 3: VCC+ = 5 V, VCC- = GND, Tamb = 25 °C (unless otherwise specified) Symbol Parameter Vio Input offset voltage Iio Input offset current Test conditions Min. Typ. 1 (1) -40 °C ≤ Tamb ≤ 150 °C -40 °C ≤ Tamb ≤ 150 °C 25 Avd Large signal voltage gain ICC Supply current (all comparators) Vid Differential input voltage VOL Low level output voltage IOH High level output current Isink Output sink current Vid = -1 V, V o = 1.5 V tres Small signal response (4) time RL = 5.1 kΩ to VCC+ trel Large signal response time, TTL (5) input -40 °C ≤ Tamb ≤ 150 °C VCC = 15 V, RL = 15 kΩ, Vο = 1 tο 11 V Unit mV 50 150 (2) Input bias current 7 15 5 Iib Max. 250 nA 400 25 200 V/mV VCC = 5 V, no load 0.4 1 VCC = 30 V, no load 1 2.5 (3) VCC+ Vid = -1 V, Isink = 4 mA 250 -40 °C ≤ Tamb ≤ 150 °C 400 700 VCC = Vo = 30 V, Vid = 1 V 0.1 -40 °C ≤ Tamb ≤ 150 °C V mV nA 1 6 mA µA 16 mA 1.3 µs Vref = 1.4 V, RL = 5.1 kΩ to VCC+, output signal at 50 % of final value 500 ns Vref = 1.4 V, RL = 5.1 kΩ to VCC+, output signal at 95 % of final value 1 µs Notes: (1) + At output switch point, VO ≈ 1.4 V, RS = 0 Ω with VCC from 5 V to 30 V, and over the full input common-mode range + (0 V to VCC –1.5 V). (2) The direction of the input current is from the IC due to the PNP input stage. This current is essentially constant, independent of the state of the output, so no loading charge exists on the reference of input lines. (3) Positive excursions of input voltage may exceed the power supply level. As long as the other voltage remains within the common-mode range, the comparator provides a proper output state. The low input voltage state must not be less than –0.3 V (or 0.3 V below the negative power supply, if used). (4) (5) The response time specified is for a 100 mV input step with 5 mV overdrive. Maximum values are guaranteed by design and evaluation. DocID028311 Rev 1 5/14 Electrical characteristics LM2903WH Figure 3: Input current vs. supply voltage Figure 4: Output saturation voltage vs.output current Figure 5: Response time for various input overdrives negative transition Input voltage (mV) Output voltage (V) Figure 2: Supply current vs. supply voltage Input voltage (mV) Output voltage (V) Figure 6: Response time for various input overdrives - positive transition 6/14 DocID028311 Rev 1 LM2903WH 4 Typical application schematics Typical application schematics Figure 7: Basic comparator Figure 8: Driving CMOS 5V VCC = 5 V 15 kΩ 100 kΩ +V(ref) +V(ref) 1/2 LM2903 1/ 2 LM2903 VO & -V(ref) -V(ref) Figure 9: Driving TTL Figure 10: Low-frequency op amp 5V 5V 15 kΩ 10 kΩ 1/2 LM 2903 +V(ref) 1/ 2 LM2903 ~ e l & -V(ref) eo 100 kΩ & 0.5 µF 1 kΩ AV = 100 Figure 11: High-output current capability op amp Figure 12: Transducer amplifier 5V (e o = 0 V for e l = 0 V) 15 kΩ 1/ 2 LM2903 ~ el 2N 2222 0.5 µF 100 kΩ eo 1 kΩ AV = 100 DocID028311 Rev 1 7/14 Typical application schematics LM2903WH Figure 13: Low-frequency op amp with offset adjust Figure 14: Zero crossing detector (single power supply) 5V 100 kΩ 5.1 kΩ 5.1 kΩ 100 kΩ 5.1 kΩ el 1/ 2 LM2903 1N4148 20 MΩ 10 kΩ Figure 15: Limit comparator VCC Figure 16: Split-supply applications - zero crossing detector (12 V) 15 V 10 kΩ 2RS V(ref) high 1/ 2 LM2903 5.1 kΩ Lamp RS 1/2 LM 2903 eI eI ~ 2RS 1/2 LM2903 eo ~ 2N 2222 15 V V(ref) low Figure 17: Crystal controlled oscillator Figure 18: Comparator with a negative reference VCC = 15 V 15 V 200 kΩ 2 kΩ 100 kΩ 5.1 kΩ VCC 0.1 µF 1/2 LM2903 0 eo 1/2 LM2903 eI ~ 5V f = 100 kHz 15 V 200 kΩ 8/14 DocID028311 Rev 1 eo LM2903WH Typical application schematics Figure 19: Time delay generator Figure 20: Two-decade high-frequency VCO VCC 100 kΩ Frequency control voltage input Vcontrol 500 pF 3 kΩ VCC 3 kΩ 5.1 kΩ 1/ 2 LM2903 10 kΩ 100 kΩ 1/ 2 LM2903 0.01 µF 0.1 µF Output 1 VCC /2 20 kΩ Output 2 20 kΩ 50 kΩ 1/ 2 LM2903 VCC = + 30 V Vcontrol +250 mV 700 Hz fo VCC /2 +50 V 100 kHz DocID028311 Rev 1 9/14 Package information 5 LM2903WH Package information In order to meet environmental requirements, ST offers these devices in different grades of ® ® ECOPACK packages, depending on their level of environmental compliance. ECOPACK specifications, grade definitions and product status are available at: www.st.com. ® ECOPACK is an ST trademark. 10/14 DocID028311 Rev 1 LM2903WH 5.1 Package information MiniSO8 package information Figure 21: MiniSO8 package outline Table 4: MiniSO8 mechanical data Dimensions Ref. Millimeters Min. Typ. A Inches Max. Min. Typ. 1.1 A1 0 A2 0.75 b Max. 0.043 0.15 0 0.95 0.030 0.22 0.40 0.009 0.016 c 0.08 0.23 0.003 0.009 D 2.80 3.00 3.20 0.11 0.118 0.126 E 4.65 4.90 5.15 0.183 0.193 0.203 E1 2.80 3.00 3.10 0.11 0.118 0.122 0.80 0.016 e L 0.85 0.65 0.40 0.60 0.006 0.033 0.026 0.024 L1 0.95 0.037 L2 0.25 0.010 k ccc 0° 0.037 8° 0.10 DocID028311 Rev 1 0° 0.031 8° 0.004 11/14 Ordering information 6 LM2903WH Ordering information Table 5: Order codes Order code LM2903WHYST (1) Temperature range Package Packing Marking -40 °C to +150 °C MiniSO8 (automotive grade) Tape and reel K421 Notes: (1) Qualification and characterization according to AEC Q100 and Q003 or equivalent, advanced screening according to AEC Q001 and Q 002 or equivalent. 12/14 DocID028311 Rev 1 LM2903WH 7 Revision history Revision history Table 6: Document revision history Date Version 07-Oct-2015 1 DocID028311 Rev 1 Changes Initial release 13/14 LM2903WH IMPORTANT NOTICE – PLEASE READ CAREFULLY STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, enhancements, modifications, and improvements to ST products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on ST products before placing orders. ST products are sold pursuant to ST’s terms and conditions of sale in place at the time of order acknowledgement. Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the design of Purchasers’ products. No license, express or implied, to any intellectual property right is granted by ST herein. Resale of ST products with provisions different from the information set forth herein shall void any warranty granted by ST for such product. ST and the ST logo are trademarks of ST. All other product or service names are the property of their respective owners. Information in this document supersedes and replaces information previously supplied in any prior versions of this document. © 2015 STMicroelectronics – All rights reserved 14/14 DocID028311 Rev 1